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生态学杂志 ›› 2010, Vol. 29 ›› Issue (04): 643-648.

• 研究报告 • 上一篇    下一篇

群落结构和叶面积指数在具茨山植被次生演替中的变化

宋豫秦1,常磊1**,杨晓靖1,蔡博峰2   

  1. 1北京大学环境科学与工程学院| 北京 100871; 2环境保护部环境规划院| 北京 100037
  • 出版日期:2010-04-09 发布日期:2010-04-09

Changes of community structure and leaf area index during vegetation secondary succession in Juci Mountain.

SONG Yu-qin1, CHANG Lei1, YANG Xiao-jing1, CAI Bo-feng2   

  1. 1College of Environmental Sciences and Engineering of Peking University, Beijing 100871, China|2Chinese Academy for Environmental Planning of the State Environmental Protection Administration, Beijing 100037, China
  • Online:2010-04-09 Published:2010-04-09

摘要: 采取3S(GIS,RS和GPS)技术和野外作业相结合的方法,研究了河南省具茨山人为干扰后植被次生演替过程。在此基础上,从宏观和微观尺度对不同演替阶段典型群落的结构变化和植被叶面积指数(LAI)动态进行分析。结果表明:乔木阶段的植被LAI均值为4.1~5.5;灌木阶段为3.0~3.7;草本阶段为1.0~1.5。部分灌木林在生长季的LAI和盖度高于乔木林。随着演替进行,群落结构也发生很大变化,乔木种类和数量逐步上升。植被系统的复杂度和稳定性不断增强,其发挥的生态功能和生态服务价值随之提高。

关键词: 城市绿地系统, 景观结构, 分布格局, 环境监测, 大气污染

Abstract: By using 3S (GIS, RS and GPS) technology and field survey data, this paper studied the process of vegetation secondary succession after human interference in Juci Mountain, and analyzed the changes of community structure and leaf area index (LAI) at different stages of the vegetation succession from the macro- and micro aspects. The average LAI at tree stage was 4.1-5.5, at shrub stage was 3.0-3.7, and at herb stage was 1.0-1.5. The LAI and coverage of some shrubs in growth season were higher than those of trees. With the succession went on, the community structure also changed greatly. Both the quantity and the species number of trees increased gradually. The complexity and stability of vegetation system increased with succession, and the ecological function and ecosystem service value improved accordingly.

Key words: Urban green-land system, Landscape structure, Spatial pattern, Environmental monitoring, Air pollution